User Guide

This decision can be undone by selecting the master contact (e.g. M01) and clicking SPLIT .
■ Merging contacts held on the sphere/cylindrical and UUV or towed arrays can give a fairly
accurate range using triangulation.The point where matching sphere and UUV or towed array
bearings cross is a good approximation of the contact’s range.This method is most accurate on
close range contacts a beam of Ownship,but is highly susceptible to bearing error off the bow
or stern of Ownship, or at great ranges.
NOTE: If the TMA Auto Crewman is activated, he does everything for you.You can make no TMA
inputs yourself. For more information on your TMA Auto Crewman seeAuto Crewmen on
p. 146.
TMA ON UUV SENSOR CONTACTS
All controllable submarines can carry Unmanned Underwater Vehicles (UUVs). UUVs in Sub
Command have sonar capabilities only and can not launch weapons. For information on launching
UUVs see Special Operations and Procedures/Deploying UUVs on p. 149.The lines of bearing for
contacts detected by a UUV are drawn from the location of the UUV at the time of the report, not
from Ownship’s location.TMA on UUV contacts is performed as for any other sonar contact in
active or passive mode.
SEAWOLF: TMA STATION
Use of the TMA station is included in first portion of the TMA section.The Seawolf’s Button Matrix
and Data Display are described below.
TMA Board: Contains the bearing history for the selected contact as well as the TMA ruler and Dot
stack as described in the early portion of the TMA section.The range and bearing of the cursor’s
location on the TMA Board appears in the upper right corner of the board.
Seawolf Trial Solution Area
Bearing, Course, Range, and Speed Fields: Represent the trial solution for the selected contact.The
current position and size of the TMA ruler is reflected in these fields These numbers are altered by
dragging and sizing the ruler or by entering values directly into these fields.To lock in a particular
value, click the button directly above the label. When a value is locked, the text of the button label
is green.
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TMA Board
Trial Solution Area
TMA Data Display
TMA Button Matrix
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